US 11,809,129 B2
Treatment of printing substrate
Daniel F. Varnell, Wilmington, DE (US)
Assigned to Solenis Technologies, L.P., Wilmington, DE (US)
Filed by SOLENIS TECHNOLOGIES, L.P., Wilmington, DE (US)
Filed on Jan. 29, 2021, as Appl. No. 17/248,568.
Application 17/248,568 is a continuation of application No. 15/979,084, filed on May 14, 2018, granted, now 10,908,522.
Claims priority of provisional application 62/507,741, filed on May 17, 2017.
Prior Publication US 2021/0208520 A1, Jul. 8, 2021
This patent is subject to a terminal disclaimer.
Int. Cl. G03G 7/00 (2006.01); G03G 17/08 (2006.01); G03G 15/10 (2006.01); G03G 15/16 (2006.01)
CPC G03G 7/0026 (2013.01) [G03G 7/004 (2013.01); G03G 15/10 (2013.01); G03G 15/104 (2013.01); G03G 15/1695 (2013.01); G03G 17/08 (2013.01); G03G 2215/00801 (2013.01)] 20 Claims
 
1. A method of enhancing adhesion of an image to at least one surface of a substrate, the method comprising:
treating at least a portion of the surface by applying a composition comprising one or more water soluble polymers to the portion of the surface, wherein each of the one or more polymers comprises a repeat unit, and wherein the repeat unit comprises a negatively charged dipole moment of greater than 2 debyes, and wherein the repeat unit comprises no positively charged dipole moment of greater than 0.8 debyes;
drying the composition after applying the composition to the substrate to form a treated substrate; and
printing an image from an electrophotographic printer utilizing liquid toner technology on the treated substrate;
wherein the composition is free of a polymer of ethylene and acrylic acid and a polymer of ethylene and methacrylic acid; and
wherein the composition is free of a binder.